Sepia Tone vs Gnoll Brown

How close are they?

ΔE 6.9, close: similar, with a visible difference side by side. Gnoll Brown is a little lighter, more saturated than Sepia Tone. They are different kinds of paint: Army Painter Sepia Tone is a wash/shade and Reaper Gnoll Brown is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.

Can I use Gnoll Brown instead of Sepia Tone?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Gnoll Brown is a little lighter, more saturated than Sepia Tone. They are different kinds of paint.

Can I use Sepia Tone instead of Gnoll Brown?

The same difference applies the other way round: Sepia Tone is a little darker, more muted.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.